10 days is what I have heard,just wait, spray them 2x a day and let them root. I have just started growing and cloning and I have only had all 3 of clones that I made in rockwool in a humidome. Its been maybe 6days since I put themin there. I spray them always when the light is off(safety) and I do it 1x in the morning and 1x in the evening....check out this link, it was very helpful for me:

Growing Weed For Beginners

need anymore help? let us know